- expose eepp windows and widgets through Cocoa NSAccessibility
- add lazy, stable native wrappers with safe lifecycle invalidation
- support hierarchy, focus, geometry, actions, values, and UTF-16 text APIs
- deliver coalesced native notifications for UI and model changes
- preserve surviving secondary windows when the primary closes
- add macOS semantic, notification, lifecycle, and performance harnesses
- add native unit coverage and accessibility example scenarios
- keep dormant accessibility overhead negligible